Event between (278361) 07JJ43 and star GA0620:15009323 with event index number of 2180866
Geocentric closest approach at 2022/03/15 12:28:38 UTC
J2000 position of star is 17:14:10.2 -26:02:34
Equinox of date position of star is 17:15:32.6 -26:04:01
Stellar brightness G=14.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 119 degrees from the moon.
Moon is 91% illuminated.
TNO apparent brightness V=20.8
[RECON map]
TNO is 40.8 AU from the Sun
and 40.7 AU from the Earth.
The TNO is moving 2.9
km/sec on the sky relative to the star, or,
0.3 arcsec/hr.
The 1-sigma error in the time of the event is 2883 seconds.
The 1-sigma cross-track error in the shadow position is
3514 km.
The sky-plane scale is
29491.9 km/arcsec.
The TNO has an absolute magnitude Hv=4.5
Diameter=758.6 km assuming a 5% albedo -- 264.6 sec chord
Diameter=309.7 km assuming a 30% albedo -- 108.0 sec chord
Dynamical classification is SCATNEAR
Star training set for 278361, (2022/03/15 12:29UT) Object RA Dec mag sep mel Antares 16:30:46.3 -26:28:46 0.9 10.04 109 23Tau Sco 16:37:16.1 -28:15:37 2.8 8.79 111 PPM 266626 17:17:35.5 -26:34:34 6.5 0.69 119 PPM 266602 17:16:08.1 -25:56:54 9.1 0.18 119 278361 17:15:32.7 -26:04:01 14.8 119 Positions are for equinox of date
This table contains the target star visibility for the RECON
network. The observing range has been set to a maximum of
0.3 sigma about the mid-time.
The median site spacing is 4.7 km
RECON observability=0.4 and success probability=1.4%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 12:14:37 | -10.5 | NT | Up | 11.6 | 172.9 | Really Low | 11:59:37 - 12:29:37 | 6272 |
| Dunrhomin | 12:14:34 | -11.8 | NT | Up | 23.4 | 173.2 | Low | 11:59:34 - 12:29:34 | 5870 |
| CU-SBO | 12:14:35 | -11.9 | NT | Up | 23.6 | 173.1 | Low | 11:59:35 - 12:29:35 | 5856 |
| Kamloops | 12:08:21 | -20.4 | Dark | Up | 10.5 | 158.4 | Really Low | 11:53:21 - 12:23:21 | 5815 |
| Kelowna | 12:08:37 | -20.2 | Dark | Up | 11.4 | 159.2 | Really Low | 11:53:37 - 12:23:37 | 5812 |
| Peachland | 12:08:26 | -20.4 | Dark | Up | 11.5 | 158.9 | Really Low | 11:53:26 - 12:23:26 | 5799 |
| Penticton | 12:08:29 | -20.4 | Dark | Up | 11.7 | 159.1 | Really Low | 11:53:29 - 12:23:29 | 5797 |
| Summerland | 12:08:39 | -20.4 | Dark | Up | 11.6 | 159.0 | Really Low | 11:53:39 - 12:23:39 | 5796 |
| Anarchist Mountain Observatory | 12:08:29 | -20.4 | Dark | Up | 12.3 | 159.2 | Really Low | 11:53:29 - 12:23:29 | 5783 |
| Oliver | 12:08:26 | -20.5 | Dark | Up | 12.0 | 159.0 | Really Low | 11:53:26 - 12:23:26 | 5783 |
| Tonasket | 12:08:26 | -20.6 | Dark | Up | 12.5 | 159.1 | Really Low | 11:53:26 - 12:23:26 | 5767 |
| Okanogan | 12:08:19 | -20.8 | Dark | Up | 12.8 | 158.9 | Really Low | 11:53:19 - 12:23:19 | 5748 |
| Brewster | 12:08:12 | -21.1 | Dark | Up | 13.0 | 158.7 | Really Low | 11:53:12 - 12:23:12 | 5730 |
| Manson/Chelan | 12:08:05 | -21.4 | Dark | Up | 13.1 | 158.3 | Really Low | 11:53:05 - 12:23:05 | 5709 |
| Wenatchee | 12:07:54 | -21.7 | Dark | Up | 13.5 | 158.1 | Really Low | 11:52:54 - 12:22:54 | 5682 |
| PNWRO | 12:08:18 | -21.3 | Dark | Up | 15.2 | 159.3 | Really Low | 11:53:18 - 12:23:18 | 5670 |
| Ellensburg | 12:07:44 | -22.0 | Dark | Up | 13.8 | 157.8 | Really Low | 11:52:44 - 12:22:44 | 5657 |
| Yakima | 12:07:33 | -22.2 | Dark | Up | 14.2 | 157.7 | Really Low | 11:52:33 - 12:22:33 | 5638 |
| Toppenish/White Swan | 12:07:44 | -22.2 | Dark | Up | 14.4 | 157.9 | Really Low | 11:52:44 - 12:22:44 | 5634 |
| Victoria | 12:06:55 | -23.3 | Dark | Up | 11.6 | 155.3 | Really Low | 11:51:55 - 12:21:55 | 5624 |
| Goldendale | 12:07:30 | -22.7 | Dark | Up | 14.8 | 157.4 | Really Low | 11:52:30 - 12:22:30 | 5594 |
| The Dalles | 12:07:05 | -23.1 | Dark | Up | 14.9 | 157.0 | Really Low | 11:52:05 - 12:22:05 | 5570 |
| Maupin | 12:07:09 | -23.2 | Dark | Up | 15.3 | 157.0 | Really Low | 11:52:09 - 12:22:09 | 5554 |
| Sisters | 12:06:51 | -23.9 | Dark | Up | 15.9 | 156.4 | Really Low | 11:51:51 - 12:21:51 | 5493 |
| Bend | 12:06:52 | -23.8 | Dark | Up | 16.2 | 156.6 | Really Low | 11:51:52 - 12:21:52 | 5491 |
| Oregon Observatory | 12:06:55 | -23.9 | Dark | Up | 16.4 | 156.5 | Really Low | 11:51:55 - 12:21:55 | 5478 |
| North Lake | 12:06:50 | -23.8 | Dark | Up | 17.1 | 156.9 | Really Low | 11:51:50 - 12:21:50 | 5466 |
| Lakeview | 12:07:05 | -23.8 | Dark | Up | 18.2 | 157.3 | Really Low | 11:52:05 - 12:22:05 | 5434 |
| Cedarville | 12:07:09 | -23.9 | Dark | Up | 18.9 | 157.4 | Really Low | 11:52:09 - 12:22:09 | 5406 |
| Chiloquin | 12:06:27 | -24.8 | Dark | Up | 17.4 | 155.9 | Really Low | 11:51:27 - 12:21:27 | 5395 |
| Klamath Falls | 12:06:22 | -24.9 | Dark | Up | 17.7 | 155.9 | Really Low | 11:51:22 - 12:21:22 | 5380 |
| Tonopah | 12:08:06 | -22.6 | Dark | Up | 23.0 | 159.9 | Low | 11:53:06 - 12:23:06 | 5335 |
| Fall River/Burney | 12:06:31 | -25.0 | Dark | Up | 18.9 | 156.1 | Really Low | 11:51:31 - 12:21:31 | 5332 |
| Susanville | 12:06:34 | -24.7 | Dark | Up | 19.8 | 156.7 | Really Low | 11:51:34 - 12:21:34 | 5328 |
| Patrick | 12:09:42 | -20.3 | Dark | Up | 26.5 | 163.0 | Low | 11:54:42 - 12:24:42 | 5316 |
| Reno | 12:07:05 | -24.3 | Dark | Up | 20.8 | 157.5 | Low | 11:52:05 - 12:22:05 | 5313 |
| Indian Springs | 12:08:47 | -21.7 | Dark | Up | 24.9 | 161.2 | Low | 11:53:47 - 12:23:47 | 5311 |
| Yerington | 12:07:10 | -23.9 | Dark | Up | 21.6 | 158.0 | Low | 11:52:10 - 12:22:10 | 5309 |
| Henderson | 12:09:09 | -21.2 | Dark | Up | 25.6 | 161.9 | Low | 11:54:09 - 12:24:09 | 5308 |
| Hawthorne | 12:07:23 | -23.7 | Dark | Up | 22.2 | 158.5 | Low | 11:52:23 - 12:22:23 | 5304 |
| Gimple | 12:06:35 | -24.9 | Dark | Up | 19.9 | 156.5 | Really Low | 11:51:35 - 12:21:35 | 5304 |
| Portola | 12:06:34 | -24.8 | Dark | Up | 20.4 | 156.8 | Low | 11:51:34 - 12:21:34 | 5302 |
| Greenville | 12:06:27 | -25.0 | Dark | Up | 19.9 | 156.4 | Really Low | 11:51:27 - 12:21:27 | 5301 |
| Kingman/Dolan Springs | 12:09:42 | -20.5 | Dark | Up | 26.7 | 162.8 | Low | 11:54:42 - 12:24:42 | 5296 |
| George/Scottsdale | 12:10:58 | -18.8 | Dark | Up | 28.7 | 165.1 | Low | 11:55:58 - 12:25:58 | 5296 |
| Carson City | 12:07:02 | -24.4 | Dark | Up | 21.2 | 157.4 | Low | 11:52:02 - 12:22:02 | 5294 |
| Quincy | 12:06:28 | -25.1 | Dark | Up | 20.1 | 156.3 | Low | 11:51:28 - 12:21:28 | 5290 |
| Beatty | 12:08:16 | -22.5 | Dark | Up | 24.3 | 160.2 | Low | 11:53:16 - 12:23:16 | 5287 |
| Gardnerville | 12:07:00 | -24.4 | Dark | Up | 21.4 | 157.4 | Low | 11:52:00 - 12:22:00 | 5283 |
| Laughlin/Bullhead City | 12:09:16 | -21.0 | Dark | Up | 26.5 | 162.2 | Low | 11:54:16 - 12:24:16 | 5273 |
| Mohave Valley | 12:09:15 | -21.1 | Dark | Up | 26.8 | 162.2 | Low | 11:54:15 - 12:24:15 | 5258 |
| Lee Vining | 12:07:10 | -24.2 | Dark | Up | 22.5 | 157.9 | Low | 11:52:10 - 12:22:10 | 5253 |
| Bishop | 12:07:20 | -23.8 | Dark | Up | 23.3 | 158.5 | Low | 11:52:20 - 12:22:20 | 5248 |
| Lake Havasu City | 12:09:26 | -20.9 | Dark | Up | 27.3 | 162.4 | Low | 11:54:26 - 12:24:26 | 5244 |
| Parker | 12:09:29 | -21.0 | Dark | Up | 27.6 | 162.4 | Low | 11:54:29 - 12:24:29 | 5224 |
| Yuma | 12:09:17 | -21.6 | Dark | Up | 28.9 | 161.8 | Low | 11:54:17 - 12:24:17 | 5123 |
| Calipatria | 12:08:48 | -22.4 | Dark | Up | 28.2 | 160.8 | Low | 11:53:48 - 12:23:48 | 5112 |
| Idyllwild | 12:08:09 | -23.3 | Dark | Up | 27.2 | 159.6 | Low | 11:53:09 - 12:23:09 | 5102 |
| Wildwood | 12:07:12 | -24.9 | Dark | Up | 26.3 | 157.7 | Low | 11:52:12 - 12:22:12 | 5043 |
Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.
Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.
Star training set for 278361, (2022/03/15 12:29UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 10.04 109 23Tau Sco 16:35:52.9 -28:12:58 2.8 8.79 111 PPM 266626 17:16:12.6 -26:33:11 6.5 0.69 119 PPM 266602 17:14:45.7 -25:55:28 9.1 0.18 119 278361 17:14:10.2 -26:02:34 14.8 119 Positions are for J2000
Event circumstances last updated at 2022/03/15 00:59:27 UT
Marc W. Buie, Southwest Research Institute